CoMo70 - Connector Modelling up to 70 GHz
A R&D project with the Swiss Federal Institute of Technology (ETHZ) and partners from industry to model small coaxial connectors. This project helped the METAS RF & MW laboratory to establish traceability for its VNA services up to 67 GHz. An extension of the activities in CoMo70 has been realized with the follow-up project CalCon.
| Start: | 2006 |
| End: | 2009 |
| Contact: | Jürg Rüfenacht |
Publications
Doctoral Thesis
- J. Hoffmann,Traceable S-parameter measurements in coaxial transmission lines up to 70 GHz,
Dissertation ETH no. 18593, October 2009
pdf (2720 kB)
Journal Papers
- J. Hoffmann, P. Leuchtmann, J. Ruefenacht, R. Vahldieck, A stable bayesian vector network analyzer calibration algorithm, IEEE Trans. Microwave Theory Tech., Vol. 57, Issue 4, pp.869-880, April 2009.
- J. Hoffmann, P. Leuchtmann, J. Ruefenacht, Ch. Hafner, Propagation constant of a coaxial transmission line with rough surfaces, IEEE Trans. Microwave Theory Tech., accepted for publication
Conference Papers
- J. Hoffmann, P. Leuchtmann, J. Schaub, R. Vahldieck, Computing Uncertainties of S-Parameters by Means of Monte Carlo Simulation, 69th ARFTG Conference, Honolulu, Conference Digest, vol. 69, Jun. 2007
- J. Hoffmann, P. Leuchtmann, R. Vahldieck, Pin Gap Investigations for the 1.85 mm Coaxial Connector, IEEE European Microwave Week, Munich, Proceedings, pp. 388-391,October 2007
- J. Hoffmann, P. Leuchtmann, R. Vahldieck, Over-determined Offset Short Calibration of a VNA, 71st ARFTG Conference, Atlanta, Conference Digest, vol. 71, June 2008.
- J. Hoffmann, P. Leuchtmann, A. Kretz, J. Ruefenacht, R. Vahldieck, Characterization of Coaxial Adapters for S-parameter Measurements, IEEE European Microwave Week, Amsterdam, Proceedings, pp. 313-316, October 2008.
- J. Hoffmann, P. Leuchtmann, J. Ruefenacht, K. Wong, S-parameters of Slotted and Slotless Coaxial Connectors, 74th ARFTG Conference, Boulder, Conference Digest, vol. 74, December 2009
Presentations
- J. Hoffmann,
Die Kalibration von Vektor Network Analyzern bis 65 GHz,
Interessengruppe elektrische Kalibrier- und Prüftechnik, METAS, Mai 2007
pdf (31521 kB) - J. Hoffmann,
Pin gap investigations for the 1.85 mm coaxial connector,
29th ANAMET meeting, Fleet (UK), March 2008
pdf (915 kB) - J. Ruefenacht,
Pin gap aspects in metrological practice,
29th ANAMET meeting, Fleet (UK), March 2008
pdf (1327 kB) - J. Hoffmann,
Pin gap investigations for the 1.85 mm coaxial connector,
European Metrology Workshop, Berlin, April 2008
pdf (10834 kB) - J. Ruefenacht,
Pin gap aspects in metrological practice,
European Metrology Workshop, Berlin, April 2008
pdf (1517 kB) - J. Hoffmann,
A stable bayesian vector network analyzer calibration algorithm,
European Metrology Workshop, Boras (Sweden), May 2009
pdf (5382 kB) - J. Ruefenacht,
Pin diameter specifications and challenges,
European Metrology Workshop, Boras (Sweden), May 2009
pdf (2392 kB) - J. Ruefenacht,
Pin diameter specifications and challenges,
32nd ANAMET meeting, Teddington (UK), October 2009
pdf (1961 kB)